Answer: 16
Step-by-step explanation:

Let's complete the square.



<h2>true</h2>
I did it on my calculater and the answer came as 13
hope that helps :)
Answer:
Cot is an inverse of tan:

Is C
|-9|+|-2|
Because there both negative and if it isn’t I’m sorry
Given:
The length of the ladder = 12 ft
The angle of ladder with ground = 60 degrees
To find:
How far up the building the ladder will reach.
Solution:
Using the given information draw a figure as shown below.
We need to find the vertical distance between the top of ladder and the ground.
Let x be the required distance.
In a right angle triangle,

In the below triangle ABC,



Multiply both sides by 12.


Therefore, the ladder will reach
ft far up the building.